3 years ago

Which of the following expressions could be interpreted as "a number times negative seven added to five equals two"?

Mathematics

2 answers:

masha68 [24]3 years ago

7 0

Answer:

5-7 x = 2

Step-by-step explanation:

a number times negative seven added to five equals two

torisob [31]3 years ago

6 0

Answer:

5 - 7x=2

Step-by-step explanation:

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Using a deck of 52 playing cards, what are the odds against drawing a 6,7,8, or 9?

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first option 4/13

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4/13

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3 years ago

In ancient egypt, a scribe equated the area of a circle with a diameter of 9 units to the area of a square with a side length of

Rudik [331]

Answer:

$\pi =3.160494$

Step-by-step explanation:

step 1

Find the area of the circle with a diameter of 9 units

we know that

The area of a circle is equal to

$A=\pi r^{2}$

we have

$r=9/2=4.5\ units$ ----> the radius is half the diameter

substitute

$A=\pi (4.5)^{2}$

$A=20.25\pi\ units^2$

step 2

Find the area of a square with a side length of 8 units

we know that

The area of the square is

$A=b^2$

where

b is the length side of the square

we have

$b=8\ units$

substitute

$A=(8)^2=64\ units^2$

step 3

Equate the areas

$20.25\pi=64$

solve for $\pi$

$\pi =\frac{64}{20.25}=3.160494$

5 0

3 years ago

Lucita works at a bookstore and earns $9.50 per hour. She works 3 hours on Friday and 7 hours on Saturday. Which expression does

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Answer:

Step-by-step explanation:

If you multiply 3 and 7 you are saying she worked 21 hours when she only worked a total of 10 hours.

3 0

3 years ago

Whats 126545 x 14569865 x 45645158 x 56453258?

GrogVix [38]

The answer is 4.75099138998831 to the 27th. :)

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Step-by-step explanation:

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2 years ago

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